ExamVeda
Login
Home
91
In hydraulic mining the coal pulp is carried by
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
92
In a drift of 2.4 m × 3.0 m size, the pull obtained per blast is 1.8 m. the total explosives consumed per blast is 36 kg. If the tonnage factor is 0.36 m3/te, the powder factor is
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
93
Which of the following statement is true for long wall mining?
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
94
Total number of injuries in an opencast coal mine employing 800 persons is 16 in a year. As per DGMS norms, the injury rate per 1000 persons employed is
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
95
First generation powered support is
Discuss
Answer & Solution
Answer: Option C
No explanation is given for this question. Let's Discuss on Board
96
Who out of the following is duly appointed in writing by the Manager as competent person to supervise the operation, plant or equipment?
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
97
As per MMR 1961, mine plan of a mine having large opencast working shall be on a scale having a representative factor of
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
98
Match the following:
Mining system Face supports
a. Mechanized longwall in flat seam 1. Cable bolting
b. Blasting gallery method 2. Shield support
c. Mechanized longwall in steep seam 3. Alpine breaker line support
d. Wangawilli method for 3 m thick coalseam 4. Troika shield support
Discuss
Answer & Solution
Answer: Option A
No explanation is given for this question. Let's Discuss on Board
99
Which of the following excavator will be used for a bench height of 20 m to 30 m in soft rock formation?
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board
100
Resuing stoping method is adopted when ore body is
Discuss
Answer & Solution
Answer: Option D
No explanation is given for this question. Let's Discuss on Board